• General
• Registers
• Processor Status (P)
• Accumulator (A,B) (C)
• X/Y Index (X) (Y)
• Stack Pointer (S) [16-bit]
• Direct (D) [16-bit]
• Data Bank (DB) [8-bit]
• Program Counter (PC) [16-bit]
• Program Bank (PB) [8-bit]
• Interrupts
• Interrupt vector table
• Addressing modes